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Diagnostic Procedure
NHEC0161
1 INSPECTION START
1. Turn ignition switch “OFF”.
2. Loosen and retighten engine ground screws.
SEF255X
3. Check heated oxygen sensor 2 (rear) harness protector color.
SEC021C
4. Disconnect corresponding heated oxygen sensor 2 (rear) harness connector.
SEF467WB
5. Disconnect ECM harness connector.
© GO TO 2.
GI
MA
EM
LC
FE
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0140 (BANK 1), P0160 (BANK 2) HO2S2 (REAR) (HIGH VOLTAGE)
Diagnostic Procedure
EC-281
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